Inorganic

Inorganic Chemistry Seminar: Dr. David Goldberg, Johns Hopkins University

Tue, 2019-02-26 12:00 - 13:00
Speaker: 
Dr. David Goldberg
Location: 

Carol Lynch Lecture Hall

Chemistry Complex

Host: Tomson

Title & Abstract TBA

inquires rvargas@sas.upenn.edu

Inorganic Chemistry Seminar: Dr. Amy Prieto, Colorado State University

Tue, 2018-10-16 12:00 - 13:00
Speaker: 
Dr. Amy Prieto
Location: 

Carol Lynch Lecture Hall

Chemistry Complex

Host: Dr Goldberg

Title & Abstract: TBA

inquires rvargas@sas.upenn.edu

Inorganic Chemistry Seminar, Dr. Hemamala Karunadasa, Stanford University

Tue, 2018-09-04 12:00 - 13:00
Speaker: 

Dr. Hemamala Karunadasa

Title

Between the sheets: The molecular chemistry of hybrid perovskites

Abstract

The tools of synthetic chemistry allow us to tune molecules with a level of precision not yet accessible with inorganic solids. We have investigated hybrid perovskites that couple organic small molecules with the optical and electronic diversity of extended inorganic solids. I will share our current understanding of these materials, whose technologically relevant properties are highly amenable to synthetic design.

The 3D lead-iodide perovskites have recently been identified as low-cost absorbers for high-efficiency solar cells. Although the efficiencies of devices with perovskite absorbers have risen at an impressive rate, the materials’ intrinsic instability and toxicity may impede their commercialization. I will discuss methods developed by our group to address these problems. The 2D hybrid perovskites have dramatically different properties from their 3D congeners. We discovered that some 2D perovskites emit broadband white light (similar to sunlight) when excited by UV light. I will discuss how these materials, which do not contain extrinsic dopants or obvious emissive sites, could emit every color of visible light. Although the organic molecules in hybrid perovskites have mostly played a templating role, we have investigated their role in engendering reactivity. I will describe reactions that occur between the inorganic sheets, which allow these nonporous solids to capture small molecules.

Brief Bio

Hema Karunadasa studied solid-state chemistry with Bob Cava at Princeton University and molecular catalysis with Jeff Long and Chris Chang at UC Berkeley and with Harry Gray at the California Institute of Technology. She joined Stanford Chemistry as an assistant professor in 2012. Her group synthesizes hybrid materials that harness the advantages of extended solids and discrete molecules.

Location: 

Carol Lynch Lecture Hall

Chemistry Complex

Attached Document: 

Host: Dr. Murray

inquiries rvargas@sas.upenn.edu

Inorganic Chemsitry Seminar: Dr. Matthew Kieber-Emmons, University of Utah

Tue, 2019-04-23 12:00 - 13:00
Speaker: 
Dr. Matthew Kieber-Emmons
Location: 

Carol Lynch Lecture Hall

Chemsitry Complex

Host: Tomson

Title & Abstract: TBA

inquiries rvargas@sas.upenn.edu

Inorganic Chemistry Seminar; Dr. Xavier Roy, Columbia University

Tue, 2019-04-09 00:00 - 01:00
Speaker: 
Dr. Xavier Roy
Location: 

Carol Lynch Lecture Hall

Chemistry Complex

Host: Dr. Murray

Title & Abstract: TBA

inquiries rvargas@sas.upenn.edu

Inorganic Chemistry Seminar: Dr. Milton Smith, MSU

Tue, 2018-12-04 12:00 - 13:00
Speaker: 
Dr. Milton Smith
Location: 

Carol Lynch Lecture Hall

Chemistry Complex

Host: Dr. Mindiola

Title & Abstract TBA

inquiries rvargas@sas.upenn.edu

Inorganic Chemistry Seminar: Dr. Katherine J. Franz, Duke

Tue, 2019-02-19 12:00 - 13:00
Speaker: 

Dr. Katherine Franz

Location: 

Carol Lynch Lecture Hall

Chemistry Complex

Host: Dr. Tomson/ Dmochowski

Title & Abstract TBA

inquires rvargas@sas.upenn.edu

Inorganic Chemistry Seminar: Dr. Michael Nippe, Texas A& M University

Tue, 2019-03-05 12:00 - 13:00
Speaker: 

Dr. Michael Nippe

Location: 

Carol Lynch lecture Hall

Chemistry Complex

Host: Dr. Tomson

Title & Abstract TBA

inquiries rvargas@sas.upenn.edu

Inorganic Chemistry Seminar: Dr.Linda Doerrer, Boston University

Tue, 2018-11-27 12:00 - 13:00
Speaker: 

Dr. Linda Doerrer

Location: 

Carol Lynch Lecture Hall

Chemistry Complex

Host: Dr.Schelter

Title & Abstract TBA

inquiries rvargas@sas.upenn.edu

Inorganic Chemistry Seminar: Dr. Skye Fortier, University of Texas- El Paso

Tue, 2018-10-09 12:00 - 14:00
Speaker: 

Dr. Skye Fortier

"Metastable Metal Complexes Supported by Guanidinate Ligands"

-In this talk, we describe the chemistry of "metastable" iron and titanium complexes supported by N-donor ligands.  We have synthesized a "super bulky" guanidinate that provides kinetic stabilization to reactive metal fragments.  To this end, our efforts to synthesize and isolate complexes containing Fe=O/Fe≡N functionalities are discussed.  Additionally, we detail our work with titanium supported by guanidinate and imidazolin-2-iminato ligands and describe its reduction chemistry. For example, we have synthesized electron-rich titanium complexes, that when reduced by two-electrons, give access to Ti(II) synthons.  These Ti(II) platforms are highly reducing and exhibit unique reactivity. For instance, we observe oxidative-addition of C(sp3)-H bonds which enables catalytic transfer hydrogenation of cyclic olefins.  This reactivity and more will be presented.

Location: 

Carol Lynch Lecture Hall

 Chemistry Complex

Host: Mindiola

inquiries rvargas@sas.upenn.edu

Department of Chemistry

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